Condensed Consolidating Statements of Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2012 Parent [Member]	Jun. 30, 2012 Parent [Member]	Jun. 30, 2012 Guarantor Subsidiaries [Member]	Jun. 30, 2012 Guarantor Subsidiaries [Member]	Jun. 30, 2012 Non-Guarantor Subsidiaries [Member]	Jun. 30, 2012 Non-Guarantor Subsidiaries [Member]	Jun. 30, 2012 Consolidation, Eliminations [Member]	Jun. 30, 2012 Consolidation, Eliminations [Member]	Jun. 30, 2011 As Restated [Member]		Jun. 30, 2011 As Restated [Member]		Jun. 30, 2011 As Restated [Member] Parent [Member]	Jun. 30, 2011 As Restated [Member] Parent [Member]	Jun. 30, 2011 As Restated [Member] Guarantor Subsidiaries [Member]	Jun. 30, 2011 As Restated [Member] Guarantor Subsidiaries [Member]	Jun. 30, 2011 As Restated [Member] Non-Guarantor Subsidiaries [Member]	Jun. 30, 2011 As Restated [Member] Non-Guarantor Subsidiaries [Member]	Jun. 30, 2011 As Restated [Member] Consolidation, Eliminations [Member]	Jun. 30, 2011 As Restated [Member] Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Software licenses	$ 32,040		$ 57,433	$ 0	$ 0	$ 31,695	$ 56,966	$ 345	$ 467	$ 0	$ 0	$ 30,221	[1]	$ 65,865	[1]	$ 0	$ 0	$ 30,221	$ 65,865	$ 0	$ 0	$ 0	$ 0
Subscriptions and other recurring revenues	3,754		7,786	0	0	3,754	7,786	0	0	0	0	3,850	[1]	8,844	[1]	0	0	3,850	8,844	0	0	0	0
Maintenance services	66,815		133,528	0	0	57,298	111,417	9,517	22,111	0	0	66,131	[1]	130,913	[1]	0	0	46,250	91,760	19,881	39,153	0	0
Product revenues	102,609		198,747	0	0	92,747	176,169	9,862	22,578	0	0	100,202	[1]	205,622	[1]	0	0	80,321	166,469	19,881	39,153	0	0
Consulting services	60,273		120,762	0	0	40,967	83,271	19,306	37,491	0	0	58,808	[1]	116,186	[1]	0	0	39,506	80,250	19,302	35,936	0	0
Reimbursed expenses	5,875		11,434	0	0	3,882	7,594	1,993	3,840	0	0	6,512	[1]	11,232	[1]	0	0	4,347	7,250	2,165	3,982	0	0
Service revenues	66,148		132,196	0	0	44,849	90,865	21,299	41,331	0	0	65,320	[1]	127,418	[1]	0	0	43,853	87,500	21,467	39,918	0	0
Total revenues	168,757		330,943	0	0	137,596	267,034	31,161	63,909	0	0	165,522	[1]	333,040	[1]	0	0	124,174	253,969	41,348	79,071	0	0
Cost of software licenses	1,527		2,435	0	0	1,527	2,435	0	0	0	0	1,181	[1]	2,130	[1]	0	0	1,181	2,130	0	0	0	0
Amortization of acquired software technology	1,703		3,405	0	0	1,703	3,405	0	0	0	0	1,833	[1]	3,667	[1]	0	0	1,833	3,667	0	0	0	0
Cost of maintenance services	14,412		28,334	0	0	8,847	17,458	5,565	10,876	0	0	14,736	[1]	28,722	[1]	0	0	9,426	18,427	5,310	10,295	0	0
Cost of product revenues	17,642		34,174	0	0	12,077	23,298	5,565	10,876	0	0	17,750	[1]	34,519	[1]	0	0	12,440	24,224	5,310	10,295	0	0
Cost of consulting services	46,003		91,905	0	0	29,672	59,925	16,331	31,980	0	0	47,209	[1]	93,510	[1]	0	0	29,924	60,158	17,285	33,352	0	0
Reimbursed expenses	5,875		11,434	0	0	3,882	7,594	1,993	3,840	0	0	6,512	[1]	11,232	[1]	0	0	4,347	7,250	2,165	3,982	0	0
Cost of service revenues	51,878		103,339	0	0	33,554	67,519	18,324	35,820	0	0	53,721	[1]	104,742	[1]	0	0	34,271	67,408	19,450	37,334	0	0
Total cost of revenues	69,520		137,513	0	0	45,631	90,817	23,889	46,696	0	0	71,471	[1]	139,261	[1]	0	0	46,711	91,632	24,760	47,629	0	0
GROSS PROFIT	99,237		193,430	0	0	91,965	176,217	7,272	17,213	0	0	94,051	[1]	193,779	[1]	0	0	77,463	162,337	16,588	31,442	0	0
Product development	18,684		37,804	0	0	11,164	23,262	7,520	14,542	0	0	19,762	[1]	39,854	[1]	0	0	12,195	24,920	7,567	14,934	0	0
Sales and marketing	24,481		49,367	0	0	15,093	31,259	9,388	18,108	0	0	25,364	[1]	51,604	[1]	0	0	15,235	31,518	10,129	20,086	0	0
General and administrative	24,526		49,345	1,428	2,715	19,004	38,363	4,094	8,267	0	0	16,314	[1]	38,673	[1]	(66)	(66)	12,596	31,504	3,784	7,235	0	0
Amortization of intangibles	9,530		19,060	0	0	9,530	19,060	0	0	0	0	9,592	[1]	19,310	[1]	0	0	9,592	19,310	0	0	0	0
Restructuring charges	224		2,443	0	0	102	437	122	2,006	0	0	(31)	[1]	511	[1]	0	0	(37)	246	6	265	0	0
Litigation settlement	0		0									0	[1]	(37,500)	[1]		0		(37,500)		0		0
Total operating expenses	77,445		158,019	1,428	2,715	54,893	112,381	21,124	42,923	0	0	71,001	[1]	112,452	[1]	(66)	(66)	49,581	69,998	21,486	42,520	0	0
OPERATING INCOME (LOSS)	21,792		35,411	(1,428)	(2,715)	37,072	63,836	(13,852)	(25,710)	0	0	23,050	[1]	81,327	[1]	66	66	27,882	92,339	(4,898)	(11,078)	0	0
Interest expense and amortization of loan fees	6,537		12,954	6,305	12,521	188	349	44	84	0	0	6,439	[1]	12,650	[1]	6,205	12,250	165	261	69	139	0	0
Interest income and other, net	(1,647)		(1,939)	3	(923)	17,030	33,597	(18,680)	(34,613)	0	0	(767)		2,000		(807)	1,208	9,680	(19,423)	(9,640)	20,215	0	0
Income tax provision	6,297	4,700	9,092	(2,940)	(5,439)	7,819	11,930	1,418	2,601	0	0	4,665	[1]	9,851	[1]	(1,996)	(4,141)	6,553	12,462	108	1,530	0	0
Equity in earnings of subsidiaries, net	0		0	15,401	24,178	1,986	3,536	0	0	(17,387)	(27,714)	0		0		16,049	67,661	1,882	(11,552)	0	0	(17,931)	(56,109)
NET INCOME (LOSS)	$ 10,605		$ 15,304	$ 10,605	$ 15,304	$ 14,021	$ 21,496	$ 3,366	$ 6,218	$ (17,387)	$ (27,714)	$ 12,713	[1]	$ 60,826	[1]	$ 12,713	$ 60,826	$ 13,366	$ 48,641	$ 4,565	$ 7,468	$ (17,931)	$ (56,109)

[1] (1) As restated - See Note 14 “Restatement of Previously Issued Financial Statements” of Notes to Condensed Consolidated Financial Statements.See notes to Condensed Consolidated Financial Statements.